阶段性完成

Assets/OtherPlugins/Le Tai's Asset/TranslucentImage/Script/Editor/MaterialEditorGUI.cs

@@ -0,0 +1,39 @@
+// Copyright (c) Le Loc Tai <leloctai.com> . All rights reserved. Do not redistribute.
+
+using System;
+using UnityEditor;
+using UnityEngine;
+
+namespace LeTai.Asset.TranslucentImage.Editor
+{
+public static class MaterialEditorGUI
+{
+    internal static float Slider(string label, float value, float left, float right)
+    {
+        var labelWidth = EditorGUIUtility.labelWidth;
+        EditorGUIUtility.labelWidth = 0;
+        var newValue = EditorGUILayout.Slider(label, value, left, right);
+        EditorGUIUtility.labelWidth = labelWidth;
+        return newValue;
+    }
+
+    public class PropertyScope : GUI.Scope
+    {
+        public bool Changed => _changeScope.changed;
+
+        private readonly EditorGUI.ChangeCheckScope _changeScope;
+
+        public PropertyScope(MaterialProperty prop)
+        {
+            _changeScope             = new EditorGUI.ChangeCheckScope();
+            EditorGUI.showMixedValue = prop.hasMixedValue;
+        }
+
+        protected override void CloseScope()
+        {
+            EditorGUI.showMixedValue = false;
+            _changeScope.Dispose();
+        }
+    }
+}
+}